RDFInt.PHP - RDF Interfaces for PHP
RDFint.PHP provides an implementation of the RDF API and the RDFa API as described in the according specifications of the W3C. However it is not an implementation for usage in a Browser-based environment, but rather intended for implementation of back-end services.
Support for the RDF Interfaces specification will be covered in a forthcoming version.
The online documentation can be viewed at http://developer.netlabs.org/library/rdfint.php/